Printing-machine.



No. 728.982. PATENTED MAY 26, 1903.

' M. ROSENFELD.

PRINTING MACHINE.

APPLIUATIOH FILP'D MAY 22, 1902.

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mafia-Md No. 728,982. PATENTED MAY 26,1903. M. RDSBNFELD.

PRINTING MACHINE.

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, m1- rllllllll E a I I M No. 728,982. PATENTED MAY 26, 1903.

M. ROSBNI'ELD.

. PRINTING MACHINE.

APPLICATION FILED Mn 22. 1902.

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UNITED STATES I atented May 26, 1903.

PATENT OFFICE.

MAURICE ROSENFELD, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO HENRY W. SOLFLEISCH, OF HOMESTEAD, NEW JERSEY.

MACHINE.

SPEGIFICATION forming part of Letters Patent No. 728,982, dated May 26, 1903.

Application filed May 22,1902- Serial No. 108,460. (No model.)

To all whom it may concern.-

Be it known that I, MAURICE ROSENFELD, a citizen of the United States, and a resident of New York city, borough of the Bronx, State of New-York, have invented certain new and useful Improvements in Printing-Machines, of which the following is a specification.

My invention relates more particularly to the class of printing-machines used for printing from engraved plates and the like; and it has for its object to provide means for guiding and feeding a continuous web or strip to be printed upon over said plate.

The invention consists in the novel details of improvement that will be more fully hereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming part hereof, wherein Figure 1 is a side elevation of a printingmachine provided with my improvements. Fig. 2 is an enlarged detail side elevation of part of the machine looking from the left in Fig. 4, part of the main frame being removed and parts being in section substantially on the irregular line 2 2 in Fig. 4. Fig. 3 is a detail perspective view of the web-feeding de vices; and Fig. 4 is an end elevation of the machine, partly in section, on the line 4 4 in Fig. 2.

Similar numerals of reference indicate corresponding parts in the several views.

The machine I have illustrated, to which my improvements are applied, is generally of the well-known construction commonly called a D-roller plate-press, the numeral 1 indicating the main frame, 2 the reciprocative bed or platen for carrying the printing plate or type, 3 the D-roller carried in the standards 1, and 4 the handle for operating said roller. The frame 1 has means, such as arms 1 for supporting one or more reels or rolls of webs or strips 5 to be printed. The web or strip 5 passes between the D-roller 3 and the printing-,plate upon the bed 2 and is received by a take-up reel or spool 6. The

latter is carried by a shaft 7, suitably supported, as by the standards 1.

The means I have shown for feeding the web 5 intermittently or step by step and for taking up the slack and fed portions thereof are arranged as follows: Upon the bed 2 are devices for gripping and releasing the web or strip 5, of which 8 indicates a bar carried by a frame or support 9, over which bar the web 5 passes, and a presser or gripper 10is adapted to bear upon the web 5. (See Fig. 2.) The frame or support 9 is secured to bed or platen 2, as by a screw or bolt 11, and to permit adjustment the frame 9 has a slot 9 to receive said screw or bolt. The presser or gripper 10 is swiveled to oscillate in the frame 9 and is shown carried by a bar or shaft 12, pivotally carried by frame 9, and said bar or shaft is provided with a head or knob 13 for rotating it. To the frame 1, as.

by a bar 14, carried by the standards 1, is connected a shoe or plate 15, under which the head 13is adapted to pass and to engage the same, whereby the bar or shaft 12 will be turned on itsaxis to move presser 10. The head 13 may be provided with a friction or other suitable peripheral surface to coact with shoe 15 to cause the desired action of gripper 10. The shoe 15 is shown supported by guides 16, movably carried by a bar 17, extending from bar 14, so that the shoe may have vertical movement, and springs 18, interposed between the shoe 15 and bar 17, tend to depress said shoe. The forward end 15 of shoe 15 is inclined or beveled to permit the ready passage of head 13 under said shoe. When the bed 2 moves to the left in Fig. 1, the head 13 passes under and engages shoe 15 and causes said head to be rotated to the right in said figure, thereby causing the presser 10 to clamp the web 5 upon bar 8, and when the bed 2 next moves to the right in Fig. 2 the head 13 is turned in the reverse direction, thereby releasing the presser 10 from theweb 5.

To resist shocks and jars, I provide a member 19, hinged or pivoted on the bar or shaft l2vand having a spring 19 interposed bestrip 5 to engage the printing plate or type on bed 2, the strip will be drawn the required amount from reel 6, which will rotate for the purpose, and to rewind the web 5, take up the slack, and hold the Web under tension I provide a spring-controlled take-up device, as follows: A convolute spring 25, having one end connected with the main frame and its other end arranged to operate with shaft 7, thus normally tends to turn shaft 7in the direction of the arrow at in Fig. 2 to wind up web 5 on reel 6. The spring 25 is to intermittently draw the web 5 and is connected with a drum 26 free to rotate with respect to shaft 7, to which drum the inner end of said springvis connected, and said drum has a spring actuated pawl 27, that engages a ratchet-wheel 28, secured to shaft 7. The drum 26 is rotated in the reverse direction to arrow at to wind up the spring 25, as by a chain or connection 29, wound on said drum and connected with a treadle or the like 30. The spring can thus be wound at each operation of printing or when required. I

As a convenient means for permitting th reel or spool 6 to be connected with and disconnected from shaft 7, I have shown the latter as jointed at 7*and provided with a sleeve 7", Fig. 4, a spring 7 serving to press said shaft to the left in Fig. 4. To adjust the reels or spools 6 in position, the sleeve '7 is moved from over the joint 7 and the shaft 7 moved to one side of its normal position; but other means may be provided for this purpose. A plurality of reels 5 of the webs or strips 5 and a like number of receivingreels 6 may be provided, and one or more of the web-feeding devices, so that several webs or strips may be printed simultaneously, and suitable tension devices may be applied to the reels 5.

The operation of my improvements may be described as follows: When the parts are in the position of rest and ready for the printing operation,the pressure-roller 3 will have its cut-away or flat part presented over the bed 2, the latter will be in the extreme position at the left, as in Fig. 1, the presser 10 will be in substantially the position as shown in Fig. 1, with the head 13 under the shoe 15, and the web 5 will be drawn taut and so held between drum 26 and reel 5 by spring 25. When roller 3 is now rotated in the direction of the arrow 1) in Fig. 2, its curved surface will slip along web 5, and the bed 2 will be moved by the cam 3 to the right in Fig. 2, at which time the head 13 will rotate backwardly under shoe 15 to open gripper 10 and release web 5, the gripper thereupon sliding free of web 5 for the full length of such movement of bed 2. When the bed brings the printing-plate in the position to be pressed by roller 3 for printing upon the web 5, the latter will be gripped between the roller and said plate, and the continued rotation of said roller will cause the web to be drawn from reel 6, which latter will rotate backwardly. During such action the slack produced in the web between roller 3 and reel 5 Will be pushed toward the latter in the intermediate space without any particular effect. When the roller 3 has been rotated so far that it is relieved from the printing-plate, the web 5 will be released and the spring 25 will cause the reel 6 to rewind the web 5 until it is again drawn taut. Thereupon as roller 5 is next rotated in the direction reverse to the arrowb the roller will slip against the web until the roller again reaches its first-named inactive position, and simultaneously therewith the bed 2 will move to the left in Fig. 2, the gripper 10 sliding freely along the web, which still remains stationary; but as soon as the head 13 engages shoe 15 the presser 10 will be turned to clamp web 5 against bar 8, and the continued movement of the bed 2 to the left in Fig. 2 will cause the web 5 to be fed a corresponding amount until the bed comes to rest at the end of its stroke, (substantially as in Fig. 1,) the head 13 sliding under shoe 15 while the gripper l0 clamps the web, and the amount of web thus fed is taken up by reel 6. When the roller 3 is next rotated in the direction of arrow 6, the bed 2 travels to the right in Fig. 2, as before explained, and the amount of the web that has been fed (as just stated) will be drawn back from the reel 6 for the new printing section or surface of the web, and so on, as the printing operation is continued. It will be understood that the amount of the web that is fed is determined by the distance that the head 13 slides under shoe 15 aftergripper 10 has been turned to grip the web 5 against bar 8 and that the first movement of the bed 2 to the right in Fig. 2 causes gripper 10 to release the web 5, owing to the rotation of head 13 under shoe 15.

By adjusting the support 9 upon bed I 2 more or less toward or from the roller 3 the amount of Web to be fed for each printing impression will be determined, because thereby the head 13 will be permitted to have more or less sliding movement under shoe 15, while the gripper 10 holds and feeds the web 5.

When the spring 25 runs down, it may again be wound by operating treadle 30, and this may be done as often as required, the arrangement of the treadle connection 29 with drum 26 which I have set forth being a convenient means for keeping spring 25 under more or less tension during operation, and this spring may be rewound for each one or several printing operations.

From the foregoing it will be understood that each time that the roller 3 is oscillated back and forth new parts pf the web 5 will Having now described my invention, what I claim is- 1. A printing-machine of the character described comprising a frame, a reciprocative bed or platen to carry a printing medium, a pressing or printing roller, means carried by said bed for intermittently feeding a continuous web or strip between said roller and said printing medium, means for adjusting the feeding devices along the bed for regulating the amount of web to be fed, and means for taking up the slack or fed portion of said Web, substantially as described.

2. A printing-machine of the character described comprising a frame, a reciprocative bed or platen tocarry a printing medium, a pressing or printing roller, means to supply a continuous web or strip to be printed between said medium and said roller, means for feeding the web or strip, a reel to receive the web or strip from said roller, and means to turn said reel in one direction to take up the fed portions of the web, said means being arranged to permit the reel to be turned in the opposite direction to enable the web to be drawn back from the reel during the printing operation, substantially as described.

3. A printing-machine of the character described comprising a frame, a reciprocative bed or platen to carry a printing medium, a pressing or printing roller, means to supply a continuous web or strip to be printed between said medium and said roller, means for feeding the web or strip, a reel to receive said web or strip, a spring to operate said reel to take up said web, and means to permit said reel to be turned backwardly against the tension of the spring, substantially as described.

4. A printing-machine of the character described comprising a frame, a reciprocative bed or platen to carry a printing medium, a pressing or printing roller, means to supply a continuous web or strip to be printed between said medium and said roller, means for feeding the web or strip, areel to receive the web or strip, a spring, a ratchet and pawl interposed between said reel and spring, and means for winding up the spring after it has operated the reel through the medium of the ratchet and pawl, substantially as described.

5. A printing-machine of the character described comprising a frame, a reciprocative bed or platen to carry a printing medium, a

' ressing or rintin roller gri in devices connected with said bed or platen, means for supporting a web between its ends so as to be engaged by said gripping device to intermittently feed the web, and reels for supporting the web, one of the reels being arranged to oscillate to permit fed portions of the web to be drawn back, substantially as described.

6. A printing-machine of the character described comprising a frame, a reciprocative bed or platen to carry a printing medium, a printing or pressing roller, a gripping device connected with said bed or platen and comprising a bar and a movable presser to coact to grip a Web, means for operating said presser to grip and release said web, and reels for supporting the web, one of the reels being arranged to oscillate to permit fed portions of the Web to be drawn back, substantially as described.

7. A printing-machine of the character described comprising a frame, a reciprocative bed or platen to carry a printing medium, a pressing or printing roller, a gripping device connected with said bed or platen and comprising a bar and a movable presser to coact to grip a Web, said presser having a rotary head, and a shoe to be engaged by said head, the head and the shoe being arranged to cause the presser to grip the web when the head first engages the shoe, the head thereafter sliding in contact with the shoe during the continued stroke of the bed, substantially as described.

8. A printing-machine of the character described comprising a frame, a reciprocative bed or platen to carry a printing medium, a pressing or printing roller, a frame or support carried by said bed and having a bar to receive a web, a presser to operate with the web and movably carried by said frame or support, said presser having a rotary head, and a spring-operated shoe to-be engaged by said head, the head and the shoe being arranged to cause the presser to grip the web when the head first engages the shoe, the head thereafter sliding in contact with the shoe during the continued stroke of the bed, substantially as described.

9. A printing-machine of the character described comprising a frame, a reciprocative bed or platen to carry a printing medium, a pressing or printing roller, a support carried by said bed and having a bar to receive a web, a presser to operate with the web, means to operate said presser, a member movably connected with said presser, a spring to coact therewith, and a buffer connected with the main frame to coact with said member, substantially as described.

MAURICE ROSENFELD.

Witnesses:

T. F. BOURNE, ARTHUR G. PERRY.

ILO 

